This paper argues that the ability to keep innovations secret may be a key determinant of patenting. To test this hypothesis, the paper examines a newly-collected data set of more than 7,000 American and British innovations at four world's fairs between 1851 and 1915. Exhibition data show that...

This chapter describes how liability insurance has contributed to the transparency of the civil justice system. The chapter makes three main points. First, much of what we know about the empirics of the civil justice system comes from access to liability insurance data and personnel. Second, as...